Can FaceTime get blocked by Apple per the device?

I make a lot of outbound calls for work on my iPhone 17e and my FaceTime stopped working like 2 weeks ago, support cannot figure it out senior advisors can’t do anything and engineering hasn’t responded, I’ve went through every single troubleshooting step that exists I’ve changed my number made a new Apple account, I personally believe Apple has flagged it as spam and put a restriction on the device itself , same thing just happened to my back up work phone as well, iMessage works on both phones still the other phone is an iPhone Air I’ve spent about 8 hours on the phone with support, senior advisors as well multiple I’ve literally lost thousands over dollars over it and not too sure what to do at this point